Quantitative Aptitude - Arithmetic Ability Questions

In the given figure, PQ is the diameter of the circle. What is the measure (in degrees) of QSR?

One pipe can fill an empty cistern in 4 hours while another can drain the cistern when full in 10 hours. Both the pipes were turned on when the cistern was half-empty. How long will it take for the cistern to be full?

The ratio of sand to gravel in a mixture is 7 : 8 while that between gravel and cement is 6 : 7. What is the ratio of sand to cement in the mixture?

Find the odd letters from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?

A tower is 50 meters high.Its shadow is x metres shorter when the sun's altitude is 45° than when it is 30° . The value of x in metres is

If cot 135° = x, then the value of x is